CN101786064A - Operating means, the recovery boiler Apparatus for () and method therefor of recovery boiler equipment liquid rifle - Google Patents
Operating means, the recovery boiler Apparatus for () and method therefor of recovery boiler equipment liquid rifle Download PDFInfo
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- CN101786064A CN101786064A CN200911000074A CN200911000074A CN101786064A CN 101786064 A CN101786064 A CN 101786064A CN 200911000074 A CN200911000074 A CN 200911000074A CN 200911000074 A CN200911000074 A CN 200911000074A CN 101786064 A CN101786064 A CN 101786064A
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- Prior art keywords
- rifle
- liquid rifle
- liquid
- operating means
- recovery boiler
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/12—Combustion of pulp liquors
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- Cleaning By Liquid Or Steam (AREA)
Abstract
The present invention relates to a kind of operating means that is used for the liquid rifle (2) of recovery boiler equipment, this operating means comprises that a kind of nozzle (7) that is used to make the liquid rifle transfers to the burner hearth (1) of boiler and leave the transfer device (11) of burner hearth.In addition, the method that the present invention also relates to a kind of recovery boiler equipment and in recovery boiler equipment, use.
Description
Technical field
The present invention relates to a kind of operating means that is used for the liquid rifle of recovery boiler equipment.In addition, the present invention relates to a recovery boiler equipment and a kind of method of in recovery boiler, using.
Background technology
Spent lye (being the so-called black liquor that produces in paper-making pulping) burns in recovery boiler, on the one hand, and in order to reclaim the energy that it contains, on the other hand, in order to reclaim the chemical composition that it contains and described chemical composition to be turned back in the circulation.
Black liquor supplies to boiler in so-called liquid rifle zone, and this zone is made up of a plurality of liquid rifles, utilizes described liquid rifle to bring the black liquor of supercharging into boiler internal.For operation and maintenance liquid rifle, a kind of typical equipment comprises feeding platform (being called main service platform).If cause boiler to change into normal pressure for some reason, on this main service platform, move and to bring danger.Such as, the obstruction if boiler becomes, personnel just may be exposed under the sputter of spark in walking on the main service platform or in the regional work of liquid rifle.For example by mistake shut down or owing to locking may be sent out when stopping situation similar and gives birth to when air-introduced machine.The change of boiler load is manually-operated, and in this case, contiguous liquid rifle operation is necessary.May a great defective be that when needs were changed the liquid rifle, the operator just was exposed in the dangerous environment.When operating liquid nozzle (such as, the situation of replacing, open the annex of nozzle, open the nozzle of obstruction) time, the operator is with regard to (125-150 ℃) black liquor of direct contact heat.
From the viewpoint of security of work, liquid rifle zone is one of the zone of the easiest accident that meets accident of recovery boiler.Security is usually at considering that the different man-machine or mechanical solution in this zone people's activity is modified.
Summary of the invention
Now, propose a solution, this scheme can reduce the workload that the operator needs in liquid rifle zone.
In order to reach this target, the basic feature of operations according to the instant invention device will be introduced in independent claims 1.Then, will in independent claims 6, introduce according to the essential characteristic of recovery boiler equipment of the present invention.The essential characteristic of the method according to this invention will be introduced in independent claims 11.Other dependent claims will introduce that some are preferred embodiment of the present invention.
Basic thought of the present invention is the operating means that proposes the liquid rifle in a kind of recovery boiler equipment, and under such mode, this operating means comprises transfer device, is used for liquid rifle head and nozzle are wherein transferred to the burner hearth of boiler and shifted out burner hearth.
In one embodiment, this operating means is arranged at least two liquid rifles of operation, and this operating means comprises and is used to make this operating means to move to the motion of the second liquid rifle from the first liquid rifle.
In one embodiment, this operating means is arranged to determine by scanning circumstance the position of this operating means.
In one embodiment, this operating means is arranged to carry out at least one step in the following steps:
-about beginning or finish the liquid burning operation task (such as, for instance, operation liquid rifle enters or leaves burner hearth)
-conducting liquid rifle opening
-cleaning nozzle zone
The position of-adjustment rifle
-parting liquid rifle
-blowing cleaning solution rifle, such as, blow to the air blast well
-cleaning fluid rifle
-replacing liquid rifle
-replacing nozzle
The sampling of-black liquor
In one embodiment, monitoring operation cited below is automatic:
-monitor the liquid rifle between injection period in its position or be safe at liquid in burner hearth
If stop liquid was ejected into described rifle when-numerical value " limit switch of the rifle retainer of the rifle in burner hearth " was no longer valid
-the leakage of monitoring pipe-line system on the basis of pressure change.
In one embodiment, this operating means comprises the computer visual means, and determines at least a portion in the following by this computer visual means:
-the spray pattern that forms by the liquid rifle
The size of-drop
The conducting of-liquid rifle needs
The replacing of-liquid rifle needs
In one embodiment, the valve that is used to connect the liquid rifle is automation.
In one embodiment, recovery boiler equipment comprises:
-can be used to close the lid of liquid rifle opening
-make the transfer device of this lid motion
In one embodiment, the liquid rifle is disposed in the retainer with the form that they can be pulled out.The valve that is connected for spraying black liquor is automatically, makes liquid spray and can pass through the one after the other controlled beginning of dcs (DCS), such as, every next liquid rifle.
In one embodiment, this structure comprises one or more automations, and described automation is mainly carried out different actions on main service platform in black liquor rifle zone.Automation is connected to the remainder of the control system of this equipment, such as, for instance, dcs.Preferably, automation circulates along guide rail or analog in burner hearth.In one embodiment, this operating means that comprises executing agency is 6 movable automation unit.
In one embodiment, the work of liquid rifle separates by dividing plate or shadow shield with this regional remainder.
Independent different embodiment with the setting mentioned above various combination form provide multiple advantage.According to its performance, a single application may comprise following one or more advantage.
The security of-use is enhanced
The operation of carrying out on-the people is minimized
The working time of-contiguous rifle significantly reduces.The remaining observation that must keep is more safer than in the past
The danger of-injury to personnel is lowered
The operation of-relevant black liquor rifle is carried out in a controlled manner and all the time in the same way
The probability of-maloperation reduces
-availability improves
Description of drawings
Below, the present invention will be described in more detail with reference to appended schematic diagram, wherein
Accompanying drawing 1 shows the principle of recovery boiler equipment
Accompanying drawing 2 shows the details in liquid rifle zone
Another embodiment of accompanying drawing 3 display operation unit
For clear, accompanying drawing has only shown the details that can understand necessity of invention.In order to emphasize feature of the present invention, those have been omitted for understanding the present invention's structure not necessarily still apparent to those skilled in the art and details in the accompanying drawings.
The specific embodiment
Fig. 1 has shown recovery boiler equipment from principle.This equipment comprises burner hearth 1, and black liquor to be burnt is supplied to here by liquid rifle 2.Accompanying drawing has shown the bottom of liquid rifle zone 3 at this equipment.Liquid rifle zone 3 generally includes the main service platform of so-called operation and maintenance liquid rifle 2.In liquid rifle zone is smelt spout zone 4 below 3.In this embodiment, be that air is supplied with platform 5 successively on 3 tops, liquid rifle zone.According to applicable cases, the quantity that air is supplied with platform 5 can be different with the position.Different part between this accompanying drawing is interrelated does not indicate according to accurate dimensions, because the purpose of this accompanying drawing only is in order to show the position in liquid rifle of the present invention zone 3.
Accompanying drawing 2 has shown the details in liquid rifle zone 3.This accompanying drawing has shown the layout of liquid rifle 2 in the zone of the wall 6 of contiguous this boiler.The output of liquid rifle 2 comprises nozzle 7, and black liquor is supplied with from here and broken away from the liquid rifle.In this accompanying drawing, the head of liquid rifle 2 is in interior location with the nozzle 7 that is connected to liquid rifle 2 heads and is positioned in the inside of burner hearth 1, and also, the liquid rifle is in the use location.Liquid rifle opening 8 forms in the wall 6 of boiler, so that liquid rifle 2 is placed in the burner hearth 1.When the head of liquid rifle 2 and the nozzle 7 that is connected to liquid rifle 2 heads externally position (maintenance position), promptly when burner hearth 1 outside, liquid rifle opening 8 can be closed by covering 9 expediently.
2 embodiment with reference to the accompanying drawings, liquid rifle 2 is placed in the retainer 10, makes the liquid rifle to move by the retainer of activity.Like this, the nozzle 7 of the head of liquid rifle 2 and liquid rifle can be pulled out.Retainer 10 moves by executing agency 11, such as, for instance, motor, cylinder or automation (automation shows in accompanying drawing 3).This at this embodiment, retainer 10 and executing agency 11 have formed the operating means of liquid rifle 2 and executing agency 11 operates as transfer device.The lid 9 of liquid rifle opening 8 also moves by executing agency 12, such as, for instance, motor, cylinder or automation (automation shows in accompanying drawing 3).
The valve 13 relevant with the injection of black liquor is automations.Advantageously, the automation of valve 13 makes liquid spray can pass through dcs (DCS) to be activated in the mode controlled in regular turn (such as, every next liquid rifle 2).
Move liquid rifle 2 by executing agency 11 and can provide different functions with autocontrol valve 13.For instance, when when burner hearth 1 is removed liquid rifle 2, no matter be in order to keep in repair, reduce load or other reason, carry out following operation: the black liquor charging is closed in the mode of control in regular turn and nozzle 7 cleans by steam blowing; Confirm not have and press; Nozzle is closed by executing agency 12 by the lid 9 that executing agency is drawn to external position and rifle opening 8.Liquid rifle 2 is in comparatively safe exercisable position after this.
2 application with reference to the accompanying drawings, following advantageously automation of operation quilt:
-operation liquid rifle enters or leaves burner hearth
-begin or stop to spray according to required preparation
-between injection period, monitor the position of liquid rifle at liquid, to guarantee that the liquid rifle is safe in its position with in burner hearth inside
If the numerical value of " rifle is in the burner hearth " of the limit switch of-rifle retainer is no longer valid, stop liquid is sprayed
-according to the leakage of the change of pressure monitoring pipe-line system
-adjust the position of rifle from Control Room
-conducting liquid rifle opening
-scavenge pipe and liquid rifle
Can use different machinery, electric and/or optical switch and controller (such as, for instance, different limit switch) to discern the position of rifle retainer 10.
Fig. 3 has shown another embodiment of the operating means of the liquid rifle 2 that is used for boiler.In this embodiment, operating means comprises movable operating unit 14, and it can move on path 15 and the operation of operating means is controlled by the control module (not shown).In the drawings, path 15 is formed by the guide rail on the base plate of service platform.This operating unit is formed by bracket 16 and functional unit 17 successively, and this will describe below in more detail.Operating unit can be along horizontal parallel in boiler the path 15 of wall 6 move.
Path 15 (referring to the structure of the bracket 16 of pilot operationp unit 14 here) also can be realized in many ways.Path 15 for example can be: guide rod or track, it can guide and support operation unit 14.Do not need practical structure path 15 to realize that movable operating unit 14 also is possible, in this case, operating unit can for example move on the moving region of service platform.
In one embodiment, path 15 is attached to the wall 6 of boiler.By guide rail being attached to the wall 6 of boiler, the mutual alignment of guide rail and liquid rifle 2 and the temperature of wall are irrespectively kept constant in fact.When temperature changed owing to material coefficient of thermal expansion, the size of the wall 6 of boiler can change usually.Operating unit 14 preferably mainly is arranged in below the guide rail 15, and also, operating unit adopts the mode that hangs from guide rail.Advantageously, guide rail 15 can move to the zone of guide rail below as far as possible unblockedly.In certain embodiments, guide rail 15 can be placed on the below of operating unit 14 or also can be positioned at the side of operating unit.It also is possible placing guide rail 15 in other mode, but owing to the position of different piece must be considered with other some solutions because of the variation that thermal expansion causes.
The operating unit 14 of motion comprises bracket 16 above-mentioned and functional unit 17 on path 15.In this embodiment, operating unit 14 also can be used as transfer device and operates.Operating unit 14 is connected with path 15 by the bracket 16 of this operating means, and operating unit can to pass through the wall 6 that executing agency's (such as, for instance, electro-motor) is parallel to boiler flatly mobile.According to the embodiment that gives an example, bracket 16 is arranged to along the path 15 and moves.Bracket 16 and/or path 15 comprise suitable transfer organization and slide structure that by said structure, bracket 16 can move to another position from a position.Functional unit 17 is connected to bracket 16 so that functional unit can and leave boiler towards the boiler motion at least, advantageously also can move vertically.In this example, bracket 16 and functional unit 17 are connected to each other by first pivot (articulated structure), such as, for instance: gear train.This first pivot can make this functional unit 17 to rotate with respect to the axis of this pivot (gear train), and in this case, the head of this functional unit 17 can move in short transverse.In one embodiment, functional unit 17 also can horizontally rotate with respect to bracket.In a preferred embodiment, operating means comprises 6 automation unit, under this kind situation, realizes that many-sided motion is possible.Preferably, this automation unit is positioned in the movable bracket 16, and the automation unit can be to suitable position motion by this bracket.The automation unit can be used as transfer device, utilizes this automation unit can make liquid rifle 2 and lid 9 motions.
Because executing agency has produced the power of operating means, can use to adapt to this purpose device, such as, for instance, different electro-motors, hydraulic pressure and pneumatic executing agency, and their direction of motion can be linear or rotation for instance.Executing agency can be placed in a different manner.For instance, they can be together with bracket 16 by the arrangement of concentrating, and power is passed to arm and other target locations that needs with suitable structure from here.Executing agency also can be positioned in the different position of operating means and/or operating unit 14, and in this case, for instance, the executing agency that produces arm movement can be arranged in the arm or with arm and be connected.
In order to determine the position of operating unit 14, it is possible using different solutions.Path 15 can comprise recognition structure, can determine the position and/or the location of operating unit 14 by this recognition structure.In one embodiment, this location is undertaken by the visual of computer, and measurement component is used in an application, and determines the position based on the metrical information that receives from measurement component.It is possible using different machinery, electric and/or optical switch and controller (such as, for instance, different limit switch).
Because computer is visual, for instance, can use the cameras record target on wavelength of visible light in fact.Also can use sensor, this sensor forms image in other some wavelength region may, such as, for instance, the IR zone.It is visual that embodiment uses a computer, and it has utilized the information that receives from a plurality of different wavelength region may.
In one embodiment, operating unit 14 is determined himself position with respect to this target by utilizing functional unit 17 scanning targets.According to detected feature, the position is determined and forms coordinate.After this, this is operated needed path and is adapted to this coordinate.In a preferred embodiment, computer visualization and scanning are used to determine the position.Like this, if desired,, just can determine the position and form coordinate according to the feature that measures by computer visualization and/or scanner.
The operation of operating means is controlled by control module.This control module can be implemented in a different manner.For instance, the function of control module can be implemented by programming, and this program can be stored in also can be in the data processing unit that some other programs are stored in self the data processing unit.In an application, the order of this control module is the part that another set of boiler uses the command set of control program.Make it possible to consider each characteristic and their may influence of different target to operation based on the control of program.
Carrying out this control based on program can implement in a different manner, such as, for instance, by input command individually to control module or by function to control module guiding or instruction expectation.In this programming, except other factors, the path of the motion of functional unit 17 and be determined about bracket 16 information.
This program comprises the necessary order that the executable operations method is required.This method can comprise, such as, working stage utilizes described working stage can control this operating means, makes:
-determine the form of the injection that forms by the liquid rifle by computer visualization
-determine the size of drop by the endoscope camera that for example is attached to automation
-determine by computer visualization whether the liquid rifle needs conducting
-determine by computer visualization whether the liquid rifle needs to change
The operation task that-execution is relevant with the stop liquid burning with unlatching
-conducting liquid rifle opening
-cleaning nozzle zone
The position of-adjustment liquid rifle
-after receiving permission, the parting liquid rifle
-blowing cleaning solution rifle, such as, blow to the air blast well
-cleaning fluid rifle
-replacing liquid rifle
-replacing nozzle
The sampling of-black liquor
In one embodiment, operating unit 14 can manually be controlled.Like this, the personnel's operation and motion of control operation unit 14 by rights.For instance, can consider uncommon situation like this.For instance, by portable control unit or by long-range use, just can control from the control room.Long-range use need receive image information usually, why Here it is advantageously will install at least one camera in operating unit reason, and the information that is produced by this camera is passed to the control room.
In one embodiment, on a wall of boiler, a control module 14 is arranged.In another embodiment, on a wall of boiler, two or more control modules 14 are arranged successively.Like this, can when safeguarding a control module 14, use another control module.Use a plurality of control modules 14 also to make it possible to equip in a different manner these control modules, in this case, under different situations, it is possible using the control module of different configurations.
All the other zone isolation in dividing plate or shadow shield 18 and this zone can be passed through in the working region of liquid rifle 2, by described dividing plate or the shadow shield operation of policer operation device safely, such as, for instance, the burning of monitoring automation and boiler.Fig. 3 has shown the preferred positions of the protective bulkhead 18 that can open by a dotted line.Preferably, this dividing plate or shadow shield 18 can partly be opened, and make it possible to easily to be operating as target with the necessity in the localized area of the expectation in liquid rifle zone 3.
In conjunction with above-described application and embodiment so that the solution that produces comprises two or more a plurality of above-described structure and/or operator scheme also is possible.
In conjunction with pattern and the structure relevant with different embodiments of the invention above introduced, it also is possible that spirit generation according to the present invention is different from embodiments of the invention by in a different manner.Therefore, embodiment mentioned above is not interpreted as restriction of the present invention, but embodiments of the invention can freely change in the scope of the feature of the present invention of claims record.
Claims (15)
1. the operating means of the liquid rifle of a recovery boiler equipment is characterized in that, this operating means comprises that the nozzle that is used to make the liquid rifle transfers to the burner hearth of boiler and leave the transfer device of burner hearth.
2. operating means according to claim 1 is characterized in that, this operating means is arranged at least two liquid rifles of operation, and this operating means comprises the motion that makes this operating means move to the second liquid rifle from the first liquid rifle.
3. operating means according to claim 1 and 2 is characterized in that this operating means comprises the computer visual means, and determines in the following at least some by this computer visual means:
The form of the injection that-liquid rifle forms
The size of-drop
The needs of-conducting liquid rifle
The needs of-replacing liquid rifle.
4. according to each described operating means of aforementioned claim 1-3, it is characterized in that this operating means is arranged to determine by the environment around the scanning position of this operating means.
5. according to each described operating means of aforementioned claim 1-4, it is characterized in that this operating means is arranged to carry out at least one in the following:
-start and stop and the relevant operation task of liquid burning
-conducting liquid rifle opening
-cleaning nozzle zone
The position of-adjustment rifle
-parting liquid rifle
-blowing cleaning solution rifle, such as, blow to the air blast well
-cleaning fluid rifle
-replacing liquid rifle
-replacing nozzle
The sampling of-black liquor.
6. recovery boiler equipment, this recovery boiler equipment comprises liquid rifle zone, wherein, the nozzle of liquid rifle arrives burner hearth by liquid rifle opening, and this zone comprises at least one operating means that is used for the liquid rifle, it is characterized in that this operating means comprises that the nozzle that is used to make the liquid rifle transfers to the burner hearth of boiler and leave the transfer device of burner hearth.
7. recovery boiler equipment according to claim 6 is characterized in that, this operating means is arranged at least two liquid rifles of operation, and this operating means comprises the motion that makes this operating means move to the second liquid rifle from the first liquid rifle.
8. according to claim 6 or 7 described recovery boiler equipment, it is characterized in that this operating means comprises the computer visual means, and determine in the following at least some by this computer visual means:
The form of the injection that-liquid rifle forms
The size of-drop
The needs of-conducting liquid rifle
The needs of-replacing liquid rifle.
9. according to each described recovery boiler equipment of aforementioned claim 6-8, it is characterized in that the valve that is used to connect the liquid rifle is automation.
10. according to each described recovery boiler equipment of aforementioned claim 6-8, it is characterized in that this recovery boiler equipment comprises
-can be used to close the lid of liquid rifle opening
-make the transfer device of this lid motion.
11. a method that is used for recovery boiler equipment, wherein, black liquor is supplied to burner hearth by liquid rifle opening by the liquid rifle, it is characterized in that, makes the nozzle of liquid rifle transfer to the burner hearth of boiler and leaves burner hearth by executing agency.
12. method according to claim 11 is characterized in that, a plurality of liquid rifles are shifted individually by the operating means that comprises executing agency.
13. according to claim 11 or 12 described methods, it is characterized in that, utilize the operating means that comprises executing agency to carry out at least one item of following task:
-determine the form of the injection that the liquid rifle forms
-determine the size of drop
-determine whether the liquid rifle needs conducting
-determine whether the liquid rifle needs to change
The operation task that-execution is relevant with the stop liquid burning with startup
-conducting liquid rifle opening
-cleaning nozzle zone
The position of-adjustment rifle
-parting liquid rifle
-blowing cleaning solution rifle, such as, blow to the air blast well
-cleaning fluid rifle
-replacing liquid rifle
-replacing nozzle
The sampling of-black liquor.
14. each the described method according to aforementioned claim 11-13 is characterized in that, the lid of liquid rifle opening is by same executing agency's opening and closing, and this executing agency makes the nozzle of liquid rifle transfer to the burner hearth of boiler and leaves boiler.
15. each the described method according to aforementioned claim 11-14 is characterized in that, this comprises that the operating means of executing agency is 6 movable automation unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20086215 | 2008-12-19 | ||
| FI20086215A FI126366B (en) | 2008-12-19 | 2008-12-19 | Treatment device for aerosol sprays of a soda boiler plant, soda boiler plant, and method of a soda boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101786064A true CN101786064A (en) | 2010-07-28 |
Family
ID=40240611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200911000074A Pending CN101786064A (en) | 2008-12-19 | 2009-12-17 | Operating means, the recovery boiler Apparatus for () and method therefor of recovery boiler equipment liquid rifle |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20100154691A1 (en) |
| EP (1) | EP2199457A1 (en) |
| CN (1) | CN101786064A (en) |
| BR (1) | BRPI0905149A2 (en) |
| CA (1) | CA2688910A1 (en) |
| FI (1) | FI126366B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI122899B (en) * | 2006-10-16 | 2012-08-31 | Metso Power Oy | Cleaner for the soda boiler |
| FI128290B (en) * | 2016-12-22 | 2020-02-28 | Valmet Technologies Oy | Chemical recovery boiler |
| FI20235345A1 (en) * | 2023-03-24 | 2024-09-25 | Andritz Oy | A method of controlling a maintenance operation apparatus of a recovery boiler and a maintenance operation apparatus |
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- 2009-12-17 CN CN200911000074A patent/CN101786064A/en active Pending
- 2009-12-17 US US12/640,768 patent/US20100154691A1/en not_active Abandoned
- 2009-12-18 CA CA2688910A patent/CA2688910A1/en not_active Abandoned
- 2009-12-18 BR BRPI0905149-0A patent/BRPI0905149A2/en not_active IP Right Cessation
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Also Published As
| Publication number | Publication date |
|---|---|
| CA2688910A1 (en) | 2010-06-19 |
| FI20086215A (en) | 2010-06-20 |
| EP2199457A1 (en) | 2010-06-23 |
| FI126366B (en) | 2016-10-31 |
| US20100154691A1 (en) | 2010-06-24 |
| BRPI0905149A2 (en) | 2011-02-08 |
| FI20086215A0 (en) | 2008-12-19 |
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Application publication date: 20100728 |